aarp is fighting to protect seniors with responsible... solutions that strengthen medicare and... social security for generations to come. we can do better than a last minute deal... that would hurt all of us. >>> our finance sector is much safer now because wall street has removed the weakest link, man. >> the specialists and noise on the floor is being replaced by the speed and quiet efficiency of computers. >> in high frequency trading computers can move millions of shares around in minutes earning a tenth of a penny off each share. and that adds up to serious money when they finally take it down to the wall street coin star. [ laughter ] >> once the computer has a trading strategy or algorth. >> jason aldean learned a hard lesson a few weeks ago. he and his wife talk about that for the first time on cbs "this morning." ♪ ♪ >>> it's 8:00. welcome back to cbs "this morning." temperatures rise in washington as president obama defends u.n. ambassador susan rice against republican critics. and country star jason aldean talks about the highs of being on top of the charts and the